Greetings everybody. First post here. Well, I am in USA at the moment. I am from Bulgaria and in my home I have around 15 GB of ebooks. From all kinds of formats:
.prc - Mobipocket
.lit - Microsoft Reader
.pdf - Acrobat Reader
.txt, .rtf, .html, .doc.

I also have one of those formats for Isilo Reader, but I can't remember the name. I just know I have it.

Well, since I am here, my mind has set upon buying one e-ink reader in order not to have so much strain on my eyes. If you can recommend the biggest, the one that can read the most formats it will be nice. I am willing to spend at most 500 for one of these things. I am Library Science student and I really appreciate the ebooks as a distinctive future of written literature. So if you can recommend something I will gladly appreciate it.

700 as I found... God dammit. Well I have to think about it. It is sound investment and from one point I'd like to read books on it. It seems that it has the best qualities from all types of e-book readers. I will probably buy it on next paycheck if I have the money. I have to check however... I don't have a bank account. I am in Montana, so I will have to check how can I pay. Does it have option for additional storage?

TXT, RTF, HTML and PRC should all work on the new Cybook.
LIT: easy to transform those into something else
PDF: A4 PDFs ? You can use Mobipocket's software to transform them if you buy the iLiad/Cybook.

Overall it depends if you have a large number of Mobipocket files. If you do, the Cybook sounds like the best choice, otherwise, the Sony PRS-500 should be fine.

I was thinking the iLiad had a single slot that took SD and CompactFlash but not both at the same time. Is that not so, then? It's been too long since I looked at the iLiad's specs I guess. Need to rectify that.

I was thinking the iLiad had a single slot that took SD and CompactFlash but not both at the same time. Is that not so, then? It's been too long since I looked at the iLiad's specs I guess. Need to rectify that.

No, they are separate slots, side by side. The "SD" slot is actually for the older "MMS" standard, which means that only SD cards up to 1GB will work. I'm using the CF slot, which has no such limitations, and works up to at least 4GB (I have a 2GB card in mine).

Being a USB "host" as well as a client, it will also read USB memory sticks.